PROPOSED PROJECT

The CGTS will be built in the southeast corner of the Delta Plant, on the corner of Delta and Fern Avenues. The main components of the project are as follows:

A new pipeline to bring water from Well 5 to the Delta Plant.

Three new filters to remove sand and other particulates from the groundwater to be treated

Nine new AO reactors arranged in series and parallel (three trains of three high). Each reactor contains ultraviolet light tubes that, in combination with hydrogen peroxide, breakdown VOCs, 1,4-dioxane, and many other organic contaminants to harmless byproducts. Hydrogen peroxide will be metered into the AO reactors from an aboveground storage tank.

An open-sided canopy to cover the AO reactors and the associated electrical controls.

Ten carbon vessels, each containing 20,000 pounds of carbon, arranged in parallel. The carbon vessels are not new; the City of Monterey Park previously used them to remove perchlorate, an inorganic contaminant, and they are already installed at the Delta Plant, although some re-piping will be required. The ten carbon vessels are a back-up treatment system but should be largely redundant as the AO system is designed to meet all applicable water quality goals.

Upgraded pH adjustment and chlorination systems.

While the CGTS is being built, the City of Monterey Park will continue to operate its existing wellhead treatment systems. Once complete, the CGTS will be tested to verify its performance and then the existing wellhead treatment systems will be taken out of service.

The above is a simplified summary of a quite complex project. ​If you have questions or want more detail, please CONTACT US.